Google’s change doesn’t tame the cookie monster, of course. A cookie re-issued every ≤2 years until 2038 and beyond has the same tracking power as a cookie expiring 31 years hence. But rare users of Google rightly should be “forgotten” by Google in two years.
It remains with you to tame the cookie monster, if that’s what you care to do. Your web browser provides you the ability to control them, which gives you the responsibility to do so. I control mine.